Kültürel mirasın fotogrametrik yöntemle üç boyutlu belgelenmesi: Sagalassos örnek çalışması

Accurate geographic documentation has always been a crucial scientific component of archaeology. Conventional 2D recording techniques in the form of orthographic drawings and/or photography are being increasingly challenged in the last decade by the three-dimensional methods that offer user friendly, low cost and time efficient solutions. These methods are closely related to the fast developing digital technology. Generated surface model data have the potential to serve multiple functions besides the geographic and metric documentation of the archaeological features. This study presents one of the 3D registration techniques employed in 2013 at the ancient city of Sagalassos, using "Structure from Motion" (SfM) and "Multi-View Stereo" (MVS) algorithms. It specifically focuses on the documentation of exposed fragile architectural remains in a trench, at the end of the excavations. The employed methodology and achieved results are presented and compared to the commonly used other 3D recording techniques. The potential of this 3D method to replace conventional 2D architectural measured drawings is discussed, as well as its capacity to perform as a site management tool for conservation and monitoring. Successful results show that this method can be used for fast and accurate geometric documentation.